Molding-machine.



o. MILLS. MOLDING MACHINE.

APPLICATION FILED MAY 6, 1903.

Patented Aug. 8, 1911.

mu PLANOGRAPH C0" WASHLNCIIDN. D. C.

C. MILLS.

MOLDING MACHINE.

APPLICATION FILED MAY 6, 1903.

10,000,103. l Patented Aug. 8,1911.

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COLUMBIA PLANOGUAPH C0, WASHINHNN, D. E.

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UNITE STATES FATE CHARLES MILLS, OF NEWTON UPPER FALLS, MASSACHUSETTS,ASSIGNOR TO WILLIS C. SWIFT, OF FITZWILLIAM, NEW HAMPSHIRE.

MOLDINGr-MACI-IINE.

Loooaos.

Specification of Letters Patent.

Patented Aug. 8, 1911.

Application filed May 6, 1903. Serial No. 155,869.

To all whom it' may concern.'

Be it known that I, CHARLES MILLS, a citi- Zen of the United States,residing at Newton Upper Falls, in the county of Middlesex and State ofMassachusetts, have invented a certain new and useful Improvement inMolding-Machines, of which the following is a specification.

My invention relates to molding machines and has for its object toprovide a new and improved machine of this description.

My invention is illustrated in the accompanying drawings, wherein-Figure l is an end view of a machine embodying my invention showing thepattern in outline and the flask broken away; Fig. 2 is a side view ofthe same the pattern and flask being omitted; Fig. 3 is a section online 3 3, Fig. 2; Fig. l is a section on line 4 4, Fig. 2; Fig. 5 is asection on line 5-5, Fig. 2; Fig. 6 is a vertical sectional view throughthe stripping plate, flask and pattern.

Like letters refer to like parts throughout the several gures;

Referring now to the drawings, wherein I have shown one form of myinvention, I provide two side pieces A and B, each of a single piece andextending from the stripping plate C to the floor. Between the sidepieces and rigidly attached thereto is a stationary piece or frame D,upon which is mounted the shaft D1. This part D may be connected to theside pieces A and B in any desired way, as by means of the bolts D2. Theside pieces A and B are connected at the bottom by means of the rods orbolts A1. These rods are supplied with screwthreads and adjusting nuts,so that the position of the side pieces may be adjusted. These sidepieces and the piece D and the rods A1 form what may be termed the mainframe of the machine. The side pieces A and B are provided on theirinner faces with guides A2 and B2 (see Fig. 2), which project therefromand form guide-ways on the side pieces. Within the main frame is amovable or sliding frame, consisting of the bottom frame G, the patternplate E, the pattern plate supporting pieces El and the rods F attachedto the pattern plate supporting pieces at one end and adjustablyattached to the bottom frame G at the other end. The pattern platesupporting pieces support the pattern plate and are provided with guidesE2, which engage the guideways in the side pieces of the main frame (seeFig. 5). This bottom frame G is provided with holes at the corners,through which the rods F pass, and is provided with guides G1, whichcoperate with the guideways on the side pieces A and B formed by theprojections A2 and B2. The shaft D1 is provided with two cranks G4, onenear each side of the main frame, and a pin Gs extends through these twocranks connecting them together. A shaft G2 is mounted in the bottomframe G and a connecting piece G3 has one end `connected to said shaftand the other to the cranks G2, said connecting piece filling the spacebetween the two cranks. This construction gives a gearing which occupiessubstantially the wholevof the space between the sides of the frame, andthus provides extended bearing surfaces to take up the Ythrust or shockproduced by ramming the sand in the flask. The rods F are eachadjustably connected to the bottom frame G in any desired manner, sothat said frame may be moved up and down therealong to secure thecorrect adjustment of t-he height of the movable frame in theconstruction and assembling of the machine and for taking up the wearwhich may occur in the use of the machine. By means of these rods, eachof the corners of the inner frame are separately adjustable, renderingit possible to easily build a machine which will be absolutely accurate.One machine may be adapted for draws of various lengths by simplychanging the height of the main frame piece D and the length of thecranks G4 in a corresponding manner.

The stool plate D3 is connected to the stationary frame piece D and isformed so as not to interfere with the movement of the movable innerframe, t-he sliding pattern plate rails passing by the stool plate indescending. This stool plate acts to support any stools that may benecessary when a pattern requiring stools is used.

The guides A2 and B2 and the inner faces of the side pieces A and B arefinished throughout their entire length, so that the main frame piece Dmay be raised or lowered in adjusting the machine to adapt it to theconditions presented, or the movable frame drawn, and yet be providedwith proper guide-ways and locating parts.

In Fig. l I have shown a simple form of pattern E4 in position on thepattern plate E, and a stool supported on the stool plate D3. It is ofcourse evident that any desired form of pattern can be used, and I haveshown a simple form for purposes of illustration. In Fig. 6 I have shownthe parts in position, including the flask EG.

In assembling the machine, the side pieces A and B are set up andfastened together by the rods A1 and the main frame piece D. The innerframe is then assembled and placed in position and connected with themain frai'ne by the connecting piece and the parts adjusted in thedesired manner.

It will be noted that the upper and lower ends of the movable innerframe are provided at each corner with guides, which engage the guideson the main frame and that the adjustable rods F passing through holesin the stationary part D form additional intermediate guides betweensaid upper and lower guides. The guides A2 and B2 at each. corner arepreferably made integral with said frame and extend substantially alongthe entire length thereof and in addition to serving as guideways topand bottom for the movable inner frame act also as surfaces foraccurately locating the parts of the stationary frame.

In the operation of the device the parts are moved so that the patternplate is in the position illustrated in Fig. 2, that is, up close to thestripping plate. The flask is then placed in position and the sandrammed about the pattern. The pattern is then withdrawn from the flaskby the operator moving the handle, so as to rotate the shaft D1. Thisshaft, through the agency of the cranks G, the connecting piece G3, andthe shaft G2, moves the pattern plate and pattern downwardly, as theshaft G2 is connected with the bottom frame piece G fastened to thepattern plate frame. The pattern is then withdrawn from the flask.

By means of this construction, I am enabled to provide a simple, rigidmachine, having large and extended bearing surfaces for all movableparts, which may be quickly and easily and accurately adjusted, and amachine that may be easily manufactured and easily assembled. It willfurther be noted that this machine will take a long stool plate.

I have described in detail a particular construction embodying myinvention, but it is of course evident that tlie parts may be varied tosuit varying conditions and such variations will readily suggestthemselves to those versed in the art.

In the operation of the device the iiask is placed in position and thepattern plate moved up to its top position. The sand is then rammed intothe flask. The shaft l)1 is then rotated so as to move the pattern,

pattern plate and associated parts to withdraw the pattern from thesand.

I claim:

l. A molding machine comprising a main frame having side pieces providedwith guides extending therealong, a movable frame with guides associatedtherewith, a connecting part between the two side pieces of the mainframe, the guides on the side pieces serving also to locate theconnecting` piece and fix its position in assembling the machine.

2. A molding machine, comprising an inner frame, consisting of a patternplate, movable pattern plate rails to which the plate is connected, asliding frame piece connected to said pattern plate rails and providedwith a shaft, a main frame, comprising two side pieces, a stationaryframe piece connected thereto and located between the pattern plate andthe sliding frame piece, a shaft mounted on said frame piece andprovided with a crank, and a connccting piece between the crank and theshaft on the movable frame.

3. A molding machine, comprising a main stationary rame, an innermovable frame carrying the pattern plate and provided at each cornerwith a rod, and a lower sliding piece adjustably connected with saidrods and having a sliding connection with the frame, so that the lengthof said inner frame may be adjusted, and a connection between the twoframes whereby one may be moved with relation to the other.

4. molding machine comprising a main frame and a. pattern carryingframe, the pattern carrying frame provided at each corner with adjustingmeans by which the pattern carrier may be adjusted independent of theconnection or the crank by which motion is communicated to it, wherebythe corners of the pattern carrier may be separately adjusted.

5. A molding machine, comprising a main frame and a movable frame, saidmain frame provided with extended guideways at each corner, the movableframe provided at each corner at the top and bottom with guides whichengage said guide-ways, the two sets of guides at the top and bottomseparated by an intervening space, said guide-ways forming part of thesupporting trame.

6. A molding machine, comprising a main frame, provided at each cornerwith guide-ways which extend substantially from top to bottom, anintermediate stationary part provided with engaging pieces which engagesaid guide-ways, so as to fix the relative position of the parts of themain frame, and a movable frame provided with guides w rich engage saidguide-ways on each side of the intermediate stationary part.

7. A molding machine, comprising an inner frame made up of a patternplate, pattern plate rails and a frame adjust-ably connected to thepattern plate rails so as to be capable of vertical adjustment, and anouter frame provided on its inner faces with guide-ways extending belowthe inner frame, and suitable guides on the inner frame engaging saidguide-ways.

S. A molding machine comprising amain frame made up of two side pieceswith anv intermediate connecting piece, the side pieces provided withinwardly projecting guides, a connecting piece connecting the two sidepieces together, the parts arranged so that the guides serve to locatethe connecting piece in assembling the machine.

9. A molding' machine having a fixed frame comprisingtwo side pieceswhich act as supports for the machine, a connecting piece between them,a shaft mounted upon the connecting piece, a movable frame associatedwith said side pieces having one portion above the connecting piece, andanother portion below the connecting piece, and a shaft on said movableframe, both of said shafts being substantially parallel with the saidside pieces.

l0. A molding machine, comprising an inner frame made up of a patternplate, pat` tern plate rails, a frame piece adjustabl7 connected to thepattern plate rails so as to be capable of vertical adjustment, and anouter frame provided on its inner face with guide-ways extending belowthe inner trame, and suitable guides on the inner frame engaging saidguide-ways, the parts of the outer frame carrying the guide-waysadjustably connected together, so that they can be adjusted to bring theguide-ways into proper relation with the movable trame.

CHARLES MILLS.

Witnesses:

JOHN S. BLAIR, VILLIS C. SWIFT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

